Top Definition
1. A completely black-clad individual who infiltrates high school dances and grinds on as many people as possible, no matter if male or female. Whether he is a hero or a villain no one knows.
"Something just pushed against my leg, but I didn't see anything. I think it was the StealthGrinder."

Come on, everyone knows there's no such thing as a StealthGri----AAAH! okay he's real.
by CharliElise February 06, 2011

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